6357346649 has 2 divisors, whose sum is σ = 6357346650. Its totient is φ = 6357346648.

The previous prime is 6357346643. The next prime is 6357346687. The reversal of 6357346649 is 9466437536.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4087300624 + 2270046025 = 63932^2 + 47645^2 .

It is a cyclic number.

It is not a de Polignac number, because 6357346649 - 2²⁰ = 6356298073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6357346649.

It is not a weakly prime, because it can be changed into another prime (6357346643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3178673324 + 3178673325.

It is an arithmetic number, because the mean of its divisors is an integer number (3178673325).

Almost surely, 2^6357346649 is an apocalyptic number.

It is an amenable number.

6357346649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6357346649 is an equidigital number, since it uses as much as digits as its factorization.

6357346649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 53.

The square root of 6357346649 is about 79732.9709028831. The cubic root of 6357346649 is about 1852.5017674000.

The spelling of 6357346649 in words is "six billion, three hundred fifty-seven million, three hundred forty-six thousand, six hundred forty-nine".